gcrypt windows build

[Simon Josefsson]

Werner Koch <wk at gnupg.org> writes:

> On Fri, 18 Dec 2009 07:20:36 +0100, Simon Josefsson wrote:
>> 
>> "Hoyt, David" <hoyt6 at llnl.gov> writes:
>> 
>> >> If you want a makefile that does everything, check out
>> >> <http://*josefsson.org/gnutls4win/Makefile>.
>> >
>> > What version of gcc do you use (in the mingw toolchain)?
>> 
>> I'm using the 'mingw32' package from debian, which appears to be gcc 4.2
>> based.  http://packages.qa.debian.org/m/mingw32.html
>
> Take care:  The mingw packages in Debian are broken:
>
>   as GNU make.  We are using Debian GNU/Linux (Lenny); due to a little
>   bug in the mingw32 compiler it is highly suggested to put a line
>     deb http://apt.intevation.org lenny/mingw .
>   into /etc/apt/sources and update the mingw packages.
>
> they replaced the snprintf and introduced a bug.  IIRC, "%lu" requires
> an "unsigned long long" arg and not an "unsigned long".  The result is
> that the stack is messed up and you get all kinds of strange error.
> At one point it took us many hours of debugging until we realized that
> some parts of a system were build with the broken mingw runtime.  The
> fix is trivial but still hasn't made it into Debian.
>
> I think libgcrypt does not use printf with "%lu" but that may depend
> on the version.

Interesting!  I believe I was able to reproduce the problem, now
reported too:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561599

/Simon